Home / 3,590.42-5,386.38-1,812.49

Finding the Fourth Proportional to 3,590.42, 5,386.38 and 1,812.49

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Solution

The fourth proportional to 3,590.42, 5,386.38 and 1,812.49 is: 2,719.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,590.42 : 5,386.38 = 1,812.49 : x
  2. Step 2: Convert to fraction form
    3,590.42/5,386.38 = 1,812.49/x
  3. Step 3: Cross multiply
    3,590.42x = 5,386.38 × 1,812.49
  4. Step 4: Simplify right side
    3,590.42x = 9,762,746.42
  5. Step 5: Solve for x
    x = 9,762,746.42/3,590.42
  6. Step 6: Final answer
    x = 2,719.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.